Comparison results and steady states for the Fujita equation with fractional Laplacian

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dc.creatorBirkner, Matthias
dc.creatorMimbela, Jose Alfredo Lopez
dc.creatorWakolbinger, Anton
dc.date2003-02-28
dc.date.accessioned2026-07-07T04:55:39Z
dc.date.available2026-07-07T04:55:39Z
dc.descriptionWe study a semilinear PDE generalizing the Fujita equation whose evolution operator is the sum of a fractional power of the Laplacian and a convex non-linearity. Using the Feynman-Kac representation we prove criteria for asymptotic extinction versus finite time blow up of positive solutions based on comparison with global solutions. For a critical power non-linearity we obtain a two-parameter family of radially symmetric stationary solutions. By extending the method of moving planes to fractional powers of the Laplacian we prove that all positive steady states of the corresponding equation in a finite ball are radially symmetric.
dc.description17 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/math/0302353
dc.identifierhttp://arxiv.org/abs/math/0302353
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/66654
dc.subjectAnalysis of PDEs
dc.subjectProbability
dc.subject60H30, 35K57, 35B05, 60G52
dc.titleComparison results and steady states for the Fujita equation with fractional Laplacian
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